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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.tuple.class_template_tuple.element_access"></a><a class="link" href="element_access.html" title="Element access">Element
        access</a>
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<h6>
<a name="fusion.tuple.class_template_tuple.element_access.h0"></a>
          <span class="phrase"><a name="fusion.tuple.class_template_tuple.element_access.description"></a></span><a class="link" href="element_access.html#fusion.tuple.class_template_tuple.element_access.description">Description</a>
        </h6>
<p>
          The <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1403.pdf" target="_top">TR1
          Tuple</a> provides the <code class="computeroutput"><span class="identifier">get</span></code>
          function to provide access to it's elements by zero based numeric index.
        </p>
<h6>
<a name="fusion.tuple.class_template_tuple.element_access.h1"></a>
          <span class="phrase"><a name="fusion.tuple.class_template_tuple.element_access.specification"></a></span><a class="link" href="element_access.html#fusion.tuple.class_template_tuple.element_access.specification">Specification</a>
        </h6>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">int</span> <span class="identifier">I</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">RJ</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
          <span class="bold"><strong>Requires</strong></span>: <code class="computeroutput"><span class="number">0</span>
          <span class="special">&lt;</span> <span class="identifier">I</span>
          <span class="special">&lt;=</span> <span class="identifier">N</span></code>.
          The program is ill formed if <code class="computeroutput"><span class="identifier">I</span></code>
          is out of bounds. <code class="computeroutput"><span class="identifier">T</span></code> is
          any fusion sequence type, including <code class="computeroutput"><span class="identifier">tuple</span></code>.
        </p>
<p>
          <span class="bold"><strong>Return type</strong></span>: <code class="computeroutput"><span class="identifier">RJ</span></code>
          is equivalent to <code class="computeroutput"><a class="link" href="../../sequence/intrinsic/metafunctions/at_c.html" title="at_c"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at_c</span></code></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span></code>.
        </p>
<p>
          <span class="bold"><strong>Returns</strong></span>: A reference to the <code class="computeroutput"><span class="identifier">I</span></code>th element of <code class="computeroutput"><span class="identifier">T</span></code>.
        </p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">int</span> <span class="identifier">I</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="identifier">PJ</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">);</span>
</pre>
<p>
          <span class="bold"><strong>Requires</strong></span>: <code class="computeroutput"><span class="number">0</span>
          <span class="special">&lt;</span> <span class="identifier">I</span>
          <span class="special">&lt;=</span> <span class="identifier">N</span></code>.
          The program is ill formed if <code class="computeroutput"><span class="identifier">I</span></code>
          is out of bounds. <code class="computeroutput"><span class="identifier">T</span></code> is
          any fusion sequence type, including <code class="computeroutput"><span class="identifier">tuple</span></code>.
        </p>
<p>
          <span class="bold"><strong>Return type</strong></span>: <code class="computeroutput"><span class="identifier">PJ</span></code>
          is equivalent to <code class="computeroutput"><a class="link" href="../../sequence/intrinsic/metafunctions/at_c.html" title="at_c"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at_c</span></code></a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span></code>.
        </p>
<p>
          <span class="bold"><strong>Returns</strong></span>: A const reference to the <code class="computeroutput"><span class="identifier">I</span></code>th element of <code class="computeroutput"><span class="identifier">T</span></code>.
        </p>
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      Dan Marsden, Tobias Schwinger<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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